Cast Film Extrusion
Cast Film Extrusion
Film Application
Cast Film
Cast films are thin, flat sheets of plastic material produced through a specific extrusion process. In this method, molten polymer is extruded through a flat die (also known as a slot die) to form a continuous, uniform film. The molten film is then rapidly cooled on a metal casting roll, resulting in a high-quality, glossy sheet with consistent thickness.
Key Steps in Cast Film Extrusion:
- Melt Extrusion: Polymers are melted through a slot or flat die (extruded) to form a thin molten film.
- Die System: The molten polymer travels through a flat die system to adopt its final flat film shape. The die system includes the die itself and, if required, a feedblock for coextrusion or simply the die for mono-layer extrusion.
- Cooling: The molten film is rapidly cooled on a metal casting roll, which solidifies it into a continuous sheet.
- Takeoff and Windup: The film is then pulled away from the casting roll and wound onto a roll for further processing or use.
![](https://www.bajajmb.com/wp-content/uploads/2024/05/DeWatermark.ai_1716638884088-1024x504.png)
![](https://www.bajajmb.com/wp-content/uploads/2024/05/DeWatermark.ai_1716638884088-1024x504.png)
Cast Film In PP & PE
![](https://www.bajajmb.com/wp-content/uploads/2024/05/close-up-machine-part-factory_1048944-24285449-1.jpg)
![](https://www.bajajmb.com/wp-content/uploads/2024/05/close-up-machine-part-factory_1048944-24285449-1.jpg)
PP Base Cast Film (CPP)
PP-based cast film refers to thin, flat sheets of plastic material produced through a specific extrusion process using polypropylene (PP) as the primary polymer.
![](https://www.bajajmb.com/wp-content/uploads/2024/05/IMG_8884-1920.jpg)
![](https://www.bajajmb.com/wp-content/uploads/2024/05/IMG_8884-1920.jpg)
PE Base Cast Film(CPE)
PE-based cast film refers to thin, flat sheets of plastic material produced through a specific extrusion process using polyethylene (PE) as the primary polymer.
Film Application
Food Packaging
![](https://www.bajajmb.com/wp-content/uploads/2024/05/healthy-products-plastic-containers_23-2148309894.jpg)
![](https://www.bajajmb.com/wp-content/uploads/2024/05/healthy-products-plastic-containers_23-2148309894.jpg)
Wrapping and Bundling
![](https://www.bajajmb.com/wp-content/uploads/2024/05/midsection-people-working-water_1048944-5943423.jpg)
![](https://www.bajajmb.com/wp-content/uploads/2024/05/midsection-people-working-water_1048944-5943423.jpg)
Stretch Film
![](https://www.bajajmb.com/wp-content/uploads/2024/05/hands-packing-onion-with-plastic-foil_23-2148374892.jpg)
![](https://www.bajajmb.com/wp-content/uploads/2024/05/hands-packing-onion-with-plastic-foil_23-2148374892.jpg)
Sterile Packaging
![](https://www.bajajmb.com/wp-content/uploads/2024/05/close-up-hand-holding-pills_23-2148538288.jpg)
![](https://www.bajajmb.com/wp-content/uploads/2024/05/close-up-hand-holding-pills_23-2148538288.jpg)
Laminated Films
![](https://www.bajajmb.com/wp-content/uploads/2024/05/curabond-film-for-lamination-1.jpg)
![](https://www.bajajmb.com/wp-content/uploads/2024/05/curabond-film-for-lamination-1.jpg)
Peelable Lidding Films
![](https://www.bajajmb.com/wp-content/uploads/2024/05/ps36685959-custom_printed_pa_pe_lamination_film_lidding_laminating_film_250_microns.jpg)
![](https://www.bajajmb.com/wp-content/uploads/2024/05/ps36685959-custom_printed_pa_pe_lamination_film_lidding_laminating_film_250_microns.jpg)
Surface Protection Films
![](https://www.bajajmb.com/wp-content/uploads/2024/05/people-taking-care-warehouse-logistics-together_23-2149128304.jpg)
![](https://www.bajajmb.com/wp-content/uploads/2024/05/people-taking-care-warehouse-logistics-together_23-2149128304.jpg)
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Advantages of Cast
Film Extrusion
Cast film extrusion is a versatile process that produces high-quality
plastic films suitable for various applications. Whether it’s food
packaging,industrial films, or medical products, cast films play
a vital role in our everyday lives.
Uniform Thickness
Cast films exhibit consistent thickness across their entire surface.
Smooth Surface Finish
The cooling process ensures a high-quality, glossy surface.
Versatility
Cast films find applications in packaging, labels, laminates, and more.